Dual neutron flux/temperature measurement sensor

Title: Dual neutron flux/temperature measurement sensor

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Simultaneous measurement of neutron flux and temperature is provided by a single sensor which includes a phosphor mixture having two principal constituents. The first constituent is a neutron sensitive 6LiF and the second is a rare-earth activated Y203 thermophosphor. The mixture is coated on the end of a fiber optic, while the opposite end of the fiber optic is coupled to a light detector. The detected light scintillations are quantified for neutron flux determination, and the decay is measured for temperature determination.

Inventors:

Mihalczo, John T. ^[1]; Simpson, Marc L. ^[2]; McElhaney, Stephanie A. ^[1]

(Oak Ridge, TN)
(Knoxville, TN)

Issue Date:: 1994-01-01

OSTI Identifier:: 869524

Assignee:: Martin Marietta Energy Systems, Inc. (Oak Ridge, TN) ORNL

Patent Number(s):: US 5352040

Contract Number:: AC05-84OR21400

Research Org:: LOCKHEED MARTIN ENRGY SYST INC

Country of Publication:: United States

Language:: English

Subject:: dual; neutron; flux; temperature; measurement; sensor; simultaneous; provided; single; phosphor; mixture; principal; constituents; constituent; sensitive; 6lif; rare-earth; activated; y203; thermophosphor; coated; fiber; optic; opposite; coupled; light; detector; detected; scintillations; quantified; determination; decay; measured; simultaneous measurement; fiber optic; neutron flux; temperature measurement; light detector; neutron sensitive; temperature determination; single sensor; detected light; flux determination; temperature measure; phosphor mixture; /374/250/252/

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